40443100444421 has 16 divisors (see below), whose sum is σ = 41745036674880. Its totient is φ = 39166143469440.

The previous prime is 40443100444367. The next prime is 40443100444429. The reversal of 40443100444421 is 12444400134404.

It is not a de Polignac number, because 40443100444421 - 2¹⁴ = 40443100428037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443100444429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18038366 + ... + 20156111.

It is an arithmetic number, because the mean of its divisors is an integer number (2609064792180).

Almost surely, 2^{40443100444421} is an apocalyptic number.

It is an amenable number.

40443100444421 is a deficient number, since it is larger than the sum of its proper divisors (1301936230459).

40443100444421 is a wasteful number, since it uses less digits than its factorization.

40443100444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38194804.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 40443100444421 its reverse (12444400134404), we get a palindrome (52887500578825).

The spelling of 40443100444421 in words is "forty trillion, four hundred forty-three billion, one hundred million, four hundred forty-four thousand, four hundred twenty-one".